Screw-clamp.



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1,089,953, 4 Patented Mar.,1o,19m

FRANZ PAU'LUS, 0F AACHEN, GERMANY.

SCREW-CLAMP.

Specification of Letters Patent.

Patented Mar. 10, 1914.

Application led October 20, 1913. Serial No. 796,285.

To all whom it may concern Be it known that I, FRANZ PAULUS, a cit-izen of the German Empire, residing at Aachen, Germany, have invented certain new and useful #Improvements in Screw-Clamps, of which the following is a specification.

The present invention relates to a screw clamp for preventing the creeping of railway rails which clamp is distinguished by a U-shaped bracing piece. one limb of which is intended to bear against wooden sleepers and the other limb ag'ainst iron sleepers, and is connected to the foot of the rail by clamping jaws with a double groove therein, embracing bot-h the foot of the rail and the web of the bracing piece and having a bolt passing between the foot of the rail and the bracing piece to tighten up the clamping Jaws.

In the drawing: Figure 1 is a longitudinal section and Fig. 2 a slde view of the clamp.

a denotes the foot of the rail, b the clamping jaws, b1 the bolt and c the bracing piece. This latter has a long limb c1, which serves to bear against wooden sleepers and a short limb c2 which serves to bear against iron sleepers and the inclination of which limb c is suited to the inclination of the side Wall of the iron sleeper.

The web of the bracing piece c is provided on its under .surface with wedge-shaped converging edges, corresponding to the upper wedge face of the foot of the rail. The bolt b1 lies exactly in the middle between the wedge faces and a Very strong and reliable connection between the bracing piece c and the foot of the rail is therefore produced when the clamping jaws are tightened up by means of the bolt b1, owing to the double wedge action.

Furthermore the above described screw clamp insures the advantage, that with the 2. A screw clamp for rails comprising a bracing piece, a pair of clamping members and a tightening bolt for `said members, said bracing piece having a downwardly extend ing flange on one side for engaging with wooden sleepers, and a similar flange on its opposite side for engaging with iron sleepers.

3. A screw clamp for rails comprising a bracing piece, a pair of clamping members and a tightening bolt for said members, said bracing piece having a-downwardly extending flange on one side for engaging with wooden sleepers, and a similar fiange on its opposite side for engaging with iron sleepers; the bo-dy of said bracing piece being provided 'with beveled edges of the same taper as the foot of the rail; said clamping members being provided with grooves for engaging said beveled edges and the foot of the rail.

In testimony whereof I have ailixed my signature in presence of two witnesses.

FRANZ PAULUS.

Witnesses HEINRICH KREozY, KARL Kimz. 

